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Sanborn Fire Insurance Maps
What is it? Large scale street plans - including building outlines, property boundaries, and building use - produced by the Sanborn Fire Insurance Company from 1867 to 1970.
Why use it? Locate buildings and neighborhoods. See a neighborhood "as it was." Study the growth of towns and cities. Identify the impact of new developments.
How does OPLIN database authentication work?
Please see the attached chart for a full explanation of how database authentication at OPLIN works. If you have further questions, please contact Support.
| Attachment | Size |
|---|---|
| Flowchart of OPLIN database authentication | 21.38 KB |